| 摘要 |
A memory area in a video game apparatus stores items owned by a character and item values corresponding to the items respectively. Fundamental data and up-date data which is copy of the fundamental data are stored as the item data. When an instruction of item "tune-up" is input through an input section, a control unit controls a display device to display a list of the items owned by the character. Of the listed items, a first item to be enhanced and a second item to be used for enhancing the first item are both designated. In response to the designation, the control unit reads item values of the designated first and second items from the memory for update. The control unit calculates a new item value of the first item based on the read item values, and the new item value is stored in the memory as up-date data.
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